JPS60214454A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To improve the vibration resistance performance by allowing a magnetic force of a magnet provided to a pressing member to adsorb the pressing member to a support member when the support member is placed at the disclamping position. CONSTITUTION:The pressing member 52 acting like disclamping in cooperation with a turntable 45 is provided freely turnably to the support member 51. The support member 51 is moved downward by a prescribed distance and the pressing member 52 is pressed into contact with the surface of the disc placed on the turntable 45 so as to be clamped. The pressing member 52 has a magnetic 52a formed as a ring form and the magnetic force of the said magnet acts on disclamping. Moreover, the pressing member 52 and the support member 51 supporting it freely turnably are made of a magnetic material such as a steel plate and when the support member 51 is in the said disclamping state, the pressing member 52 is adsorbed to the support member 51 by the magnetic force of the magnet 52a.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc player, and more particularly to an autoloading disc player 17 equipped with a disc transport mechanism for automatically transporting a disc to a playing position.

BACKGROUND ART Disc players that play information recording discs exclusively for digital audio discs have already been developed and have recently become popular in general households.

However, since such conventional disc players are designed with the premise of being installed in a quiet place indoors, they are not suitable for outdoor use. Requirements for a disc player used outdoors include ease of disc loading, overall compactness, and good vibration resistance and abrasion resistance.

1. The object of the present invention is suitable for outdoor use,
It is an object of the present invention to provide a disc player having particularly good vibration resistance.

The autoloading disc player according to the present invention comprises:
A housing having a slot into which a disc to be played is inserted, a playing means provided in the housing including a turntable, and a disc carrying part for holding the disc in a predetermined position and transporting the disc to the playing position. including a disc transport mechanism and a clamp mechanism that clamps the disc transported to the performance position,
The clamping mechanism includes a pressing member that cooperates with the turntable to perform a disk clamping action, and a pressing member that is movable between a clamped position and a non-clamped position with respect to the turntable, and rotates the suppressing member. a supporting member that freely supports the pressing member, the pressing member forms a disk clamp by the magnetic force of a magnet fixed to the suppressing member, the pressing member and the supporting member are made of a magnetic material, and the supporting member The suppressing member is attracted to the supporting member by the magnetic force of the magnet when the suppressing member is in the clamp position.

Embodiments Hereinafter, a vehicle-mounted O1-loading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire autoloading disc player.

As shown in FIG. 1, a front panel 3 constituting a part of the housing 2 is provided with a slot 3a extending in the left-right direction into which a disc 5 to be played is inserted. However, the left and right direction referred to herein refers to the front direction indicated by arrow Y. Therefore, the direction of arrow X in the figure indicates the left side, and the direction of arrow 2 indicates upward. In addition,
The disk 5 is of a type in which signals are recorded and read using a laser beam, and has an outer diameter of approximately 12C11. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 serving as a support member is provided within the housing 2. As shown in FIGS. In addition,
The chassis 7 consists of a main body 7a and a sub-chassis 7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the chassis 7 is supported by the housing 2 via four vibration isolating members 8 made of rubber or the like. However, only the two vibration isolating members 8 on the left side are shown in FIG. A tray 10 is provided on the chassis 7 so as to be movable in a direction parallel to a rotating surface of a turntable, which will be described later, in this case in a front-back direction (direction of arrow Y and the opposite direction thereof). As is particularly clear in FIG. 6, the tray 10 is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 10C protruding from the left end of the tray 10 slides into a long hole 12a formed in the bracket 12 by extending in the front-rear direction. It is supported by freely engaging.

On the other hand, a pair of moving members 13 are provided on both left and right sides of the chassis 7.
and 14 are arranged. The right moving member 14 is made of resin or the like, and is provided at the right end of the chassis 7 in the tray moving direction.
That is, it is attached to the right end of the tray 10, which is movably supported by a guide bar 15 that is fixed and extends in the front-rear direction.

Specifically, the movable member 14 is supported by a long hole 14a formed in the movable member extending in the front-rear direction and slidably engaged with a bin 10e protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13 is formed in the moving member to extend in the front direction!
A is supported by being slidably engaged with a bin 10c provided at the left end of the tray 10. The right end of the tray 10 is slidably engaged with and supported by a guide bar 15 at two support points spaced apart in the tray movement direction, that is, the front-rear direction. An interlocking shaft 17 having arms 1'7a and 17b fixed to both ends thereof is provided at the rear end of the tray 10 and extends in the left-right direction, and is rotatably supported by the D tray 10. Arm 17a,
Bottles 17c and 17d are protruded from the inner surface of the distal end of the movable member 17b, respectively, and each of the bins has an elongated hole 13b, 14b formed in each rear end of the movable member 13.14 and extending in the vertical direction.
are slidably engaged with each other. At the right end of the chassis 7 is a power transmission m consisting of a plurality of rotatably supported gears.
A structure 19 is provided. Power transmission II1. A motor 20 is fixedly installed in front of the mechanism 19, and as is particularly clear in FIG. There is.

Further, the final stage gear 19b of the power transmission mechanism 19 is meshed with a rack portion 14d formed at the lower end of the left side surface of the moving member 14 in the moving direction of the moving member, that is, in the front-rear direction. The engagement position between the final stage gear 19b and the rack portion 14d is near the midpoint of the two support points at which the tray 10 is slidably engaged with and supported by the guide bar 15.

The above-mentioned motor 20, power transmission mechanism 19, and arm 17
The interlocking shaft 17 including the movable members 13 and 17 constitutes a driving force applying means for applying a driving force to the moving members 13 and 14.

A container 22 for holding the disc 5 is arranged below the tray 10 in a position sandwiched by the moving members 13, 14.

The container 22, the tray 10, and the moving members 13 and 14 constitute a disk holding section. It should be noted that a protective film 23 made of felt or the like is attached to the disk supporting surface of the container 22 in order to avoid direct contact between the disk supporting portion and the disk 5. A total of four wooden bins 22a, one pair each at both left and right ends of the container 22, are provided extending in the left and right direction. The container 22 is configured such that each of the bins 22a is slidably engaged with four elongated holes 10r formed in the tray 10 to extend in the vertical direction, so that the container 22 is moved in the direction perpendicular to the tray movement direction, that is, in the vertical direction. It is supported so as to be movable within a predetermined range.

After passing through the elongated hole 10f, the bottle 22a of the container 22 is slidably engaged with cam holes 13d and 14d formed in the moving member 13.14, respectively.

The cam holes 13d and 14d have tapered portions that are inclined upward in the disk insertion direction, that is, from the front to the rear, that is, in the direction in which the container 22 moves away from the turntable, which will be described later.
It is comprised of a horizontal part that extends rearward and continuous with the end of the tapered part in the disk insertion direction, that is, the rear end, and a tapered part that extends parallel to the tapered part and continues with the rear end of the horizontal part. That is, the container 22 is configured to move up and down as the moving members 13 and 14 move back and forth.

Next, the tray 10 is placed at a predetermined position on the turntable which will be described later, that is, the disc 5 supported by the container 22.
The container 22 is locked to the tray 10 until the center of rotation of the turntable reaches a position where it substantially coincides with the rotation axis of the turntable, and when the tray 10 reaches the predetermined position, the locked state of the container 22 with the tray 10 is locked. A lock for releasing and locking the tray 10 to the housing 2.
The release means will be explained.

As shown in FIGS. 4 and 6, a recess 7C is formed at the right end of the main body 7a of the chassis 7. On the other hand, a cam W414e is formed on the right moving member 14 so that its position in the tray movement direction coincides with the position of the recess 7C when the tray 10 is at a predetermined position on the turntable.

A lever 25 is swingably provided at the rear end of the tray 10, and a pin 26 that can be engaged with the four portions 7C and the cam groove 148 projects from the swinging end of the lever. That is, the pin 26 is adapted to selectively engage with the recess 7C and the cam groove 14e. In addition, the moving member 14
is formed so as to extend forward continuously from the cam groove 140, and is slidably engaged with the bin 26, allowing movement of the movable member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14f is formed.

These recessed portions 7C, cam grooves 14e1, elongated holes 14f, and bins 2
6 locks the container 22 to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and releases the lock state of the container 22 with the tray 10 when the tray 10 reaches the predetermined position. In addition, locking/unlocking means for locking the tray 10 to the housing 2 is configured.

Further, the lock/release means, the chassis 7, and the tray 1
0, the container 22, the movable members 13 and 14, and the driving force applying means consisting of the power transmission mechanism 19, the motor 20, etc., move the disc 5 inserted from the slot of the housing 2 to the playing position, that is, the turn. A disk transport mechanism is configured to transport the disk onto the table.

Next, the playing means U2 provided in the housing 2 for playing a disc will be explained.

As shown in FIG. 6, on the lower surface of the chassis 7, which is a part of the disk transport mechanism, a supporting member 28 having a substantially U-shape as a whole is disposed, and is made of flexible rubber or the like. The chassis 7 is
is attached to. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the rotating surface of the turntable, in this case in the front-back direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported on the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A is provided, and a rectangular parallelepiped case 33 is rotatably held by the screw. Case 3
3 rotates in a plane perpendicular to the slider movement direction. Furthermore, inside the case 33, there is an objective lens 33a that irradiates the information recording surface of the disc 5 with a laser spot light.
An optical pickup means (other than the objective lens 33a is not shown) for reading information from the disk is carried. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, for example, as shown in FIG. 2, the tray 10 forming a part of the disk transport mechanism has a state in which the disk transport mechanism is in the pre-disk transport position (the state shown in FIG. 2).
A circular opening 10d is formed which faces the objective lens 33a when the carriage 34 is in the Bauhm position, that is, at a rest position before playing. This opening 10d is provided to wipe off dust and the like adhering to the surface of the objective lens 33a without removing the disk transport mechanism. Therefore, although not described in detail, it is a member constituting a part of the disc transport mechanism, and is interposed between the tray 10 and the objective lens 33a when the disc transport mechanism and carriage 34 are in the pre-performance position described above. Needless to say, a 680 part similar to the opening lQd is formed in the member. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. This opening 2a is also the above-mentioned opening 1Qd.
Similarly, when the disc transport mechanism and carriage 34 are in the above-mentioned rest position before playing, they are positioned so as to face the objective lens 33a. A lid 2b that can close the opening 2a is also screwed to the housing 2. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the openings 10d, 2a, etc.

However, as shown in FIGS. 9 and 10, at the end of the slider 31 in the moving direction, there is a long hole 31 extending left and right in a plane perpendicular to the slider moving direction.
b is formed. The elongated hole 31b is provided corresponding to one rotating end of the case 33, and a threaded portion 35 is provided in the elongated hole.
a is a circular head 35 of an offset screw 35 that is screwed into the case 33;
b is fitted. As the name suggests, the screw nI of the eccentric screw 35
The axial center of 35a is offset with respect to the axial center of circular head 35b. That is, by rotating the biasing screw 35, the case 33 is rotated slightly around the support screw 31a.The biasing screw 35 and the circular head 35b of the biasing screw are fitted together. The matching elongated hole 31b provides adjustment means for adjusting the rotational angular position of the case 33, that is, adjusting the so-called tangential direction of the optical pickup means (not shown) installed in the case. It is configured. In addition, after this adjustment is completed, it is fixed with the screw 31c.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to both ends of the support member 28 and is arranged parallel to the guide shafts 30a and 30b. A motor 38 is arranged in front of the screw shaft 37.
is rotationally driven by the motor' via a power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, a leaf spring 41 is fixed to the slider 31 in the form of a cantilever, and a half nut 4 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
2 is permanently installed.

A drive mechanism for driving the carriage 34 is constituted by the screw shaft 37, the motor 38, the power transmission means including the pulley 39, the leaf spring 41, the half nut 42, and related peripheral small members. ing.

A turntable 45 is disposed on an extension of the movement trajectory of the carriage 34 at a position sandwiched between the carriage and the drive mechanism that drives the carriage, and is fixed to the support member 28. As is clear from FIG. 7, the turntable 45 is directly rotationally driven by a spindle motor 46, which is a drive source and is provided to support the turntable.

As shown in FIGS. 6 and 9, the case 33, which is a part of the carriage 34, has a notch 33b into which a portion of the turntable 45 and the spindle motor 46 facing the case 33 can be inserted. It is formed. When the carriage 34 is at its home position, that is, at its rest position before playing, the turntable 45 and spindle motor 46 are fitted into the notch 33b.

As shown in FIGS. 7 and 18, an idler 47b rotatably supported by a holding mechanism 47a is brought into contact with the output shaft 46a of the spindle motor 46. These holding mechanism 47a and idler 471) constitute a close contact means for bringing the output shaft 46a and the bearing portion 46b that supports it into close contact. Normally, a gap of about 10 μm occurs between the output @ 46a and the bearing portion 46b, but by providing the above-mentioned contact means, this gap is corrected and the rotation of the output shaft 46a and therefore the turntable 45 is accurate and accurate. It will be smooth.

The above-mentioned support member 28 and guide shafts 30a, 3Q
b, the carriage 34, and the motor 38.
J mechanism (driving the carriage 34) and the turntable 4
5, the spindle motor 46, the idler 47b, etc., and the peripheral small members related thereto constitute a playing means for playing a disc.

Here, the method for attaching the support member 28 to the chassis 7 will be described in detail.

The four support points of the support member 28 with respect to the chassis 7, that is, the positions where the vibration isolating member 29 is arranged are centered on the midpoint between the movement trajectory of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are placed at equal distances on the arc.

The vibration isolating member 29 is provided to protect the performance means from external vibrations such as body vibrations of the automobile in which the 13 in-vehicle autoloading disc players are mounted. By placing the vibration isolating member 29 at the support point in this manner, the vibration isolating effect is significantly improved. The reason why the support point of the support member 28 is set as described above is to take into consideration the change in the center of gravity of the playing means due to the movement of the carriage 34.
For simplicity, for example, a support point of the support member 28 is provided on a circular arc centered on the center of gravity of the playing means when the carriage 34 is at the midpoint of the movement trajectory, and at equal distances from each other, and a vibration isolating member 29 is provided at the support point. A great vibration-proofing effect can be obtained even if the

Next, a description will be given of the clamping mechanism that clamps the disc 5 transported to the performance position, that is, the turntable 45.

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided above the container 22 at a position sandwiched between the moving members 13 and 14. A total of four wooden bins 51a are provided at both left and right ends of the support member 51.
is provided extending in the left-right direction. Support member 51
The bins 51a are movably engaged with four elongated holes 10111 formed in the tray 10 to extend in the vertical direction, so that the tray 10 can be moved in a predetermined direction in the direction perpendicular to the tray movement direction, that is, in the vertical direction. It is supported so that it can move freely within the range. The pin 51a of the support member 51 is also inserted through the elongated hole 100 of the tray 10, and is slidably engaged with cam holes 13g and 14o formed in the moving member 13, 14, respectively. The cam holes 13(] and 14(l) are linearly inclined upward in the direction in which the support member 51 leaves the turntable 45, that is, from the front to the rear. Accordingly, the support member 51 is configured to move up and down relative to the turntable 45.

Note that the cam holes 13d formed in the moving members 13 and 14
, i3o and 146 and 14g, container 22
The cam holes 13d and 14d that engage with the pin 22a of the support member 51 are referred to as first cam holes, whereas the cam holes 13° and 14o that engage with the pin 51a of the support member 51 are referred to as second cam holes. The total length of the first cam holes 13d and 14d in the disk insertion direction is approximately equal to the total length of the second cam holes 13g and 14o in the disk insertion direction.

The support member 51 is rotatably provided with a suppressing member 52 that cooperates with the turntable 45 to perform a disk clamping action. Note that the position shown in FIG.
1 unclamped position. Further, the position η of the support member 51 at which the support member 51 moves downward by a predetermined amount and the suppression member 52 comes into contact with the surface of the disk placed on the turntable 45 is referred to as a clamp position. Support member 5
1 moves between the clamped position and the non-clamped position. Also shown in Figure 3,
The suppressing member 52 has a magnet 52a formed in an annular shape, and clamps the disk by the magnetic force of the magnet. Further, the suppressing member 52 and the supporting member 51 that rotatably supports the suppressing member 52 are made of a magnetic material such as a steel plate, and when the supporting member 51 is in the non-clamping position, the suppressing member 52 is moved by the magnetic force of the magnet 52a. It is designed to be absorbed by Further, as shown in FIG. 6, a buffer member 5 made of felt or the like is provided on the upper surface of the suppressing member 52.
2b is attached to prevent the upper surface of the pressing member 52 from coming into direct contact with the housing 2 due to vibrations of the supporting member 51 when the supporting member 51 is in the non-clamped position. However, this buffer member 52 is not limited to the upper surface of the pressing member 52, but is also provided on the housing 2 that faces the pressing member 52 when the supporting member 51 is in the non-clamped position.
It is also possible to set/pull it in a part of the .

As is particularly clear in FIG. 2, a pair of left and right holding plates 54 and 55 are arranged on the lower surface of the support member 51, sandwiching the pressing member 52, and each holding three bottles 54a and 55.
Support member 51 is movable in the left and right direction via 5a.
is attached to. Arc parts 54b and 55b, which are fitted into circumferential grooves 520 (shown in the third figure) formed on the outer periphery of the suppressing member 52, are formed on each opposing part of the clamping plates 54 and 55. Circumferential groove 520 of pressing member 52
Two protruding claws 54c and 55C that can be engaged with the bottom surface of the holder are provided.

A pair of left and right synchronization plates 57.58 are also arranged on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatably attached to the support member 51 via bins 57a and 58a, respectively. I'm the number one hit. Each synchronization plate 57.58 has 3 each
Book arm parts 57C, 57d, 57 (3 and 58c
, 58d and 58e. A long hole 57f is formed at the tip of the arm portion 57C.
A pin 58f protruding from the tip of is slidably engaged. In addition, arm portions 57d and 58d protrude approximately forward.
Elongated holes 57g and 5811 are also formed at the tip of each of the cylindrical elongated holes.
4e and 55e, respectively. That is, the synchronizing plates 57 and 58 are configured to synchronize the operations of the clamping plates 54,55.

Note that the clamping plate 54 and the synchronizing plate 57 are connected to the first position determining member 61.
In contrast, the holding plate 55 and the synchronizing plate 58 are collectively referred to as a second positioning member 62. In other words, these pair of positioning members 61 and 62 are provided movably in a plane substantially perpendicular to the rotation axis of the suppressing member 52, and each of them has, for example, two positions.
It can engage with the outer periphery of the suppressing member 52 at the points (claws 54C, 55C).

Further, each of the positioning members 61 and 62 has an engagement portion with the outer periphery of the pressing member of the clamping plate 5/1.55, which is a part of both positioning members, that is, a direction in which the claws 54C and 550 approach the outer periphery of the pressing member. It is biased by a coil spring 64 which is biasing means.

The above-described positioning members 61 and 62 and the coil spring 64 constitute a positioning means for positioning the pressing member 52 at a predetermined position on the support member 51.

Further, the positioning means, the suppressing member 52, and the supporting member 5
1 and related peripheral small members constitute a clamping mechanism that clamps the disc 5 conveyed onto the performance position, that is, the turntable 45.

The positioning means including the above-mentioned positioning members 61, 62, etc. not only positions the suppressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the container 22. It also acts as a positioning means. As is clear in FIGS. 2 and 6, the positioning members 61 and 62 are arranged on both sides of the disk insertion path, and the monthly container 22 (together with the tray 10 and the moving members 13 and 14 constitutes a disk carrier). ) is movable in a plane substantially parallel to the disk supporting surface.

The clamping plate 54 is a component of each positioning member 61, 62.
．． Bin members 54f, 55f, 57h and 58h project from the lower surfaces of 55 and synchronizing plates 57 and 58, respectively. These bin members 54f.

55f, 57h, and 58h extend substantially perpendicularly to the disk supporting surface of the container 22, and act as engaging portions that engage with the outer periphery of the disk 5. In addition, the spring 64 has a positioning portion 1161.62 in the direction in which each of the bin members 54f, 55f, 57h, and 58h approaches the outer circumference of the disk.
is energized.

Here, as shown in FIG. 6, each bottle member 54f
, 55f, 57h, and 58h are formed with tapers that decrease in diameter toward the disk supporting surface of the container 22. For example, the bottle member 57h is not shown. When loading or ejecting a disc, the disc 5 is clamped by the respective bin members, and at the same time as the disc 5 is clamped, the disc 5 is pushed into the container 22 by a component force generated by the taper action of each bin member. It is pressed toward the disc holder.

Next, a mechanism for releasing the disc clamping state by the above-mentioned positioning means will be explained.

As shown in FIGS. 2 and 6, a small bracket 71 shaped like a single character is fixed to the upper end of the right moving member 14, and the small bracket 71 has a bin member 71 fixed thereto.
2 is provided protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is at a predetermined position on the turntable 45, that is, the rotation center of the disk 5 supported by the container 22 that moves together with the tray is the rotational center of the turntable 45. It is arranged so as to engage with the front end of a pawl 73 screwed to the tip of the arm portion 58e of the synchronizing plate 58, which is a component of the positioning means, when it reaches a position that substantially coincides with the axis.

That is, as the moving member 14 moves after the tray 10 reaches the predetermined position, the positioning members 61 and 62 move to 01°.
The pin members 54f, 55f, and 57h are made and screwed onto the positioning members 61 and 62.

58h and the outer periphery of the disk, that is, the disk clamping condition is released.

As is clear from FIG. 6, the container 22 is attached to the turntable 4 on the bin member 72 provided on the moving member 14
A taper is formed in which the diameter decreases in a direction approaching 5, that is, downward. The positioning means (positioning member 6
1.62, etc.) slides in contact with the bin member 72 and reciprocates together with the container 22 in a direction substantially perpendicular to the direction of tray movement, but as described above, the bin member 72 has a taper. Due to this formation, the contact between the bottle member and the positioning means is a point contact. Therefore, the resistance caused by mutual contact becomes extremely small, and disc loading and ejecting operations become smooth. Further, the positioning means is moved by +I due to the component force generated by the taper action of the bottle member 72.
You will receive power.

Next, each mechanism that operates when the disk 5 is inserted from the slot 3a of the housing 2 will be explained.

As shown in FIG. 13, inside the disk insertion slot 3a formed in the front panel 3 constituting the front part of the housing, a flexible material such as rubber is formed into a plate shape. A pair of flexible longitudinal members 76 and 77 are provided, which are arranged such that one end thereof in the hand direction faces each other and close the slot 3a at the main surface. Each of the flexible longitudinal members 76 and 77 is attached to the front panel 3 at the other end in the lateral direction, that is, at the non-opposing end thereof, by a pair of fixing members 78 and 79 having an angular cross-section.

These flexible longitudinal members 76, 77 as well as the fixed members 78.
79 constitutes a closing means for closing the slot 3a.

Each of the opposing ends of the flexible longitudinal members 76 and 77 is chamfered in an arcuate shape, so that the sliding contact between each flexible bamboo longitudinal member and the disk 5 is smooth. In addition, flexible portions 76a and 77a, which are formed thin and are particularly easy to bend, are provided in the vicinity of each opposing end of the flexible longitudinal members 76, 77, respectively.

Incidentally, the flexible longitudinal members 76 and 77 are electrically conductive and are grounded, for example, via fixing members 78 and 79, respectively. By doing this, static electricity can be removed from the disk 5 inserted through the slot 3a, and dust attached to the surface of the disk 5 due to static electricity is prevented from entering into the housing 2.

Note that when the material of the flexible longitudinal members 76, 77 is, for example, rubber, an effective method for imparting conductivity to the material is to mix carbon particles or the like.

As shown in FIGS. 2, 5, and 6, a lever 85 extending approximately in the front-rear direction is disposed on the right side of the bracket 12 fixed to the left end of the chassis 7, and a pin 85 is disposed on the right side of the bracket 12.
5a, it is rotatably attached to the bracket 12 at approximately the center in the longitudinal direction. This lever 85
is adapted to rotate in conjunction with the moving member 13. On the other hand, a prevention member 86 is provided in front of the lever 85 so as to be movable in the vertical direction - (the direction of the arrow 2 and the opposite direction). A pin 8 is attached to the left end of the prevention member 86.
A protruding pin 6a is provided, and the pin is slidably engaged with a long hole 85b formed in the front end of the lever 85. These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, as the prevention member 86 moves up and down with the rotation of the lever 85, the prevention portion 86b provided on the prevention member crosses the slot 3a and prevents the insertion of the disk from the slot 3a. -ing

By the way, the lever 85 is designed to be linked to the movement of the moving member 13, which is a component of the disk transport mechanism described above, and in this way, a part of the power for transporting the disk is transferred to the disk double insertion prevention means. By using this as the power for driving the disk double insertion prevention means, a special drive mechanism for driving the disk double insertion prevention means is not required. Therefore, it is easier to downsize and reduce the cost of the entire player.

As shown in FIGS. 2, 6, 14(a) and 14(C), the disk 5 inserted through the slot 3a is inserted into the container 22 at the deep part of the housing 2 and on the disk insertion path. A guide member 91, which acts as a guide means for guiding to a predetermined position, is arranged to face the disk supporting surface of the container 22, and is fixed to the lower surface of the tray 10, for example. The guide member 91 is formed by bending a steel plate, for example, and has a tapered portion 91a at its front end that is inclined toward the disk 10 holder of the container 22 in the disk insertion direction.

As shown in FIGS. 2, 6, and 14(a), the disk 5 inserted through the slot 3a and positioned at the predetermined position on the container 22 is inserted into the t12 end of the tray 10. A play start switch 93 is provided so as to engage the outer periphery of the disc when pushed slightly in the direction. However, this play start switch 93 is provided with an intermediate member 94 (also shown in FIG. 14(b)) which is provided in front of the play start switch so as to be movable in the front-rear direction and is provided with a forward bias. It engages with the outer periphery of the disk via.

As shown in FIG. 2, a support shaft 96 extending in the vertical direction is fixed to the lower surface of the right end of the main body 10a of the tray 10. An arm 97 formed in a substantially dogleg shape is rotatably attached to the support shaft 96 at substantially the center thereof. Bins 97a and 9 are provided on the lower surface of both ends of the arm 970.
7b are provided in a protruding manner, and the left end side bin 97a can be held on the outer periphery of the disk 5 positioned on the container 22. A switch holding member 99 that holds the detection switch 98 so as to be able to engage with the left end portion of the arm 97 is also swingably attached to the support shaft 96 . This switch holding member 99 is biased clockwise in FIG. 2 by a coil spring (not shown). The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

The above-mentioned support shaft 96, arm 97, detection switch 98,
The switch holding member 99 and related peripheral small members constitute a mechanical detection means for detecting that the disk 5 is placed on the container 22 (I7). When the bin 97b, which is protruded from the right end of the arm 97, moves rearward a predetermined distance from the position shown in FIG. It is designed so that it comes into contact with the

As shown in FIGS. 6 and 11, the carriage 34
A detection switch 101 is provided on the right side of the player 4-J for detecting that the carriage has returned to its home position, that is, the rest position before the performance starts. This detection switch 101 is fixed to a support member 28 that supports the carriage 34, etc., and a detection signal is generated when a protrusion 318 protruding from a slider 31, which is a component of the carriage 34, engages with an actuator 101a of the detection switch. It is designed to emit.

As shown in FIG. 4, a detection switch 10 is provided at the right end of the chassis 7 to detect that the tray 10 has reached the forward movement limit position n by engaging with a portion of the tray 10.
3 is fixed.

Further, as shown in FIG. 6, a movable member 14 is located at the right end of the chassis 7 and behind the detection switch 103.
A detection switch 1 detects that the movable member has reached the rearward movement limit position by engaging with a portion of the movable member, and therefore that disc loading and clamping have been completed.
0/I is fixed. However, this detection switch 10
71 is attached to the chassis 7 via a bracket 105.

Note that each signal emitted from the aforementioned operation button group 6, play start switch 93, detection switches 98, 101, 103, and 104 is transmitted to a control section (not shown) disposed at a predetermined position within the housing 2. I'm jealous. The motors 20 and 38 and the spindle motor 46 . It operates at the timing described later.

Next, the operation of the in-vehicle autoloading disc player configured as described above will be briefly explained along with the playing procedure.

Note that FIGS. 1 to 5 show the initial state of the disc player before playing.

First, insert the disk 5 into the slot 3 as shown in FIG.
Insert into the housing 2 from a. At the same time as the disk 5 is inserted through the slot 3a, the disk 5 is inserted into the bin portion 05 provided in the positioning member 61, 62 shown in FIG. 2, for example.
Iff and 55f, and both positioning members 61 and 62
Move forward by pushing left and right. Left and right bin members 54
When the center of rotation of the disk 5 crosses the line connecting the axial centers of f and 55[, both the bin members 54f and 55f are biased toward the outer circumference of the disk, so even if you release your hand, the disk 5 remains in the housing. drawn into 2. Moreover, at this time, the guide member 91 effectively guides the disk 5,
The disk 5 is positioned at a predetermined position on the container 22. Note that the disk 5 includes four wooden bin members 54f and 55.
Since the disks are positioned while being held by f, 57h and 58h, once positioned, the disks will not be displaced by external vibrations such as vehicle body vibrations.

As shown in FIGS. 15(a) and 15(b), the disk 5
At the same time as the disk 5 is positioned on the container 22, the outer periphery of the disk 5 engages with the left end pin 97a of the arm 97, and the arm is rotated, for example, counterclockwise in FIG. 15(a). . Therefore, the left end of the arm 97 engages with the detection switch 98 to operate the detection switch (the state shown in FIG. 15(b)). Then, the motor 20 starts rotating and transfers the moving member 14 via the power transmission mechanism 19.
is driven backwards. However, as is clear from FIGS. 4 and 6, the bin 26 protruding from the swinging end of the lever 25 swingably provided on the tray 10 is attached to the movable member 14.
By engaging with the cam groove 14e formed in the cam groove 14e, the moving member 14 cannot move relative to the tray 10, and therefore the container 22 is locked relative to the tray 10. Therefore, due to the rotation of the motor 20, the moving member 1
4.13, only the tray 10 and container 22 are moved rearward. Note that the bin 26 rotates on the right end of the chassis 7 while being engaged with the cam groove 14e.

Almost at the same time when the tray 10 and the container 22 move backward by a predetermined amount and the disk 5 is stored in the housing 2, the bin protruding from the right end of the arm 97 opens as shown in FIG. 15(C). 97b is the cut-and-raised portion 7 of the chassis 7
Abuts on f. In this way, the bottle 97b is cut and raised at the part 7.
By making contact with the arm 97, the engagement state between the arm 97 and the detection switch 98 is maintained. Therefore, the motor 20 continues to rotate, and the disk 5 is further transported rearward. The 15th cut-up portion 7t
The arm 97 is rotated counterclockwise (Figure +C), and the engagement state of the arm 97 with the disc 5 is released. In this state, the center of rotation of the disc 5 is aligned with the turntable 4.
It almost coincides with the rotation axis of No. 5.

At the same time as the engagement between the arm 97 and the disk 5 is released, the bin 26 leaves the cam groove 148 and enters the four portions 7C formed in the chassis 7, as shown in FIG. This locks the tray 10 with respect to the chassis 7 and therefore the housing 2, and at the same time locks the tray 10 with respect to the moving member 14.
locked state with respect to the tray 10, therefore, the container 2
The locked state of the second tray 10 is released.

In this way, only the movable members 14 and 13 continue to move backward until the state shown in FIG. 17 is reached. That is, the bottle 22a protruding from the container 22 slides along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and the first
As shown in FIG. 8, the container 22 moves downward while carrying the disk 5. Therefore, the disc 5 is placed on the turntable 45. At this time, the disk supporting surface of the container 22 separates from the disk 5, and the disk 5 becomes rotatable together with the turntable 45.

Further, by rearward movement of only the moving members 13.14, the support members 51. of the clamping mechanism. The bottle 51a protruding from the movable member 13.14 slides along the cam holes 130 and 17H1 formed in the movable member 13, 14, respectively, and the suppressing member 52 and the supporting member 51 are moved against the disk 5 as shown in FIG. As it approaches, the disk 5 is clamped. Note that the vertical movement stroke of the support member 51 is approximately 8.5Illll.
11 Furthermore, the vertical movement stroke of the container 22 is about 65 mm. The movement stroke of the container 22 is 2 mm longer than the movement stroke of the support member 51.
Although the size is smaller, this is because the cam holes 13d and 1 are slidably engaged with the bins 22a protruding from the container 22.
This result is due to the fact that 4d has a horizontal portion in the middle of the cam hole.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a portion of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. , the motor 20 is stopped. Performance is possible in this state. Note that the moving member 13
The lever 85 is rotated in conjunction with the rearward movement of the disc, and therefore the prevention member 86 prevents double insertion of the disc from the disc insertion slot 3a.

Of the operation button group 6 arranged on the front panel 3,
When the play start switch 6a is pressed and an operation signal for performance is issued, the turntable 45 rotates and at the same time the carriage 34 begins to operate and the performance begins.

When the performance ends and the carriage 34 reaches the movement limit position d, the carriage 34 and turntable 45 are stopped, and at the same time, the motor 20 starts a reversing operation. Therefore, the tray 10, the moving members 13, 14, the container 22, and the pressing member 52 are returned to the rest position before playing through a process that is completely opposite to the operation at the time of disc loading described above. Further, the carriage 34 is also returned to its home position.

The disk 5 is thus recovered.

In addition, when it is desired to play again the disc 5 which has been played once, the play start switch 93 is activated by slightly pushing the disc in the disc insertion direction, and the play is performed again.

Although the autoloading disc player is shown for use in a vehicle, it goes without saying that it can also be used indoors for home use.

Effects As detailed above, in the autoloading disc player according to the present invention, the slot-in type facilitates disc loading, and the overall compactness makes it suitable for outdoor use.

Particularly, in the autoloading disc player according to the present invention, the pressing member (52) and the supporting member (51) which rotatably supports the pressing member in cooperation with the turntable (45) to prevent disc cracking action are provided. ) is made of a magnetic material, and when the supporting member is in the non-clamped position, the magnetic field of the magnet (52a) provided on the suppressing member is
The suppressing member (52) is attracted to the supporting member (51) by this. Therefore, no noise is generated due to the suppression member and the support member colliding with each other due to external vibrations or the like. In other words, the vibration resistance of the clamp mechanism is good.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the entire in-vehicle autoloading disc player according to the present invention, FIG. 2, FIG.
4 and 5 are a plan view, a front view, a left side view, and a right side view of the internal structure of the autoloading disc player, FIG. 6 is a perspective view of the main parts of the internal structure, and FIGS. Figure 14(a). +b+, (C) is a partial detailed view of the internal structure, FIG. 15 (J. Explanation of symbols 2...Housing 2a, 10d...Opening 2b...Lid 3...Front panel 3a...Slot 5. ...Disc 6
......Operation button group 6a...Play start switch 7...
・Chassis 7a...Body 7b...Front chassis 7G...Four parts 7f...Cut and raised portion 8...Vibration isolating member 10... ...Tray 10
a...Main body 10b...Side wall member 10
c, 10e, 17c, 17d, 22a. 26.51a, 54a, 54. e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97'o----- Pin 10f, 1
00, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 570°580.8
5b... Long hole 12.105... Bracket 13.14... Moving member 13d, 13(], 14d, 14Q... Cam hole 14G...・Rack part 14.8...Cam groove 15...Guide bar 17...Interlocking shafts 17a, 17b...Arm 19...Power Transmission mechanism 19a... First stage gear 19b... Last stage gear 20... Motor 20a... Worm 22... Container 23...・Protective film 2
5.85...Lever 28.51...Support member 29...Vibration isolation member 3C)a, 30b...Guide shaft 31...
...Sliders 31a, 31c...Screws 31e...Protrusions 33...Case 33
a... Objective lens 33b... Notch 34... Carriage 35... Offset screw 35a... Threaded portion 35b...・Circular head 37...Screw shaft 38...Motor 39...Pulley 41...
...Plate spring 42...Half nut 45...Turntable/I6...Spindle motor 7I6a...Output shaft 46b...Bearing section 47a... Holding structure 1 47b... Idler 52... Pressing member 52a... Magnet 52b... Buffer member 52G... - Circumference 11454.55... Holding plates 54b, 55b... Arc parts 54c, 55c... Claws 54f, 55f, 57h, 58i1, 72...
Pin members 57c, 57d, 57e, 58c, 58d. 58e... Arm portion 57.58... Synchronization plate 61... First position determining member 62... Second positioning member 64... Coil spring 71...Small bracket 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 861)...Preventing portion 91...Guiding member 91a. ...Taber section 93...Play start switch 94...
...Intermediate member 96...Support shaft 97...
・Arms 98, 101, 103, 104...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Corporation Agent Patent attorney Motohiko Fujimura Page 1 Continuing 0 inventions Author: Toshiyuki Kimoto Inside Tokorozawa Chemical Garden 0 inventors Asamitsu Takano Inside Tokorozawa Chemical Garden

Claims (1)

[Claims] a turntable; f) a housing having a slot for inserting a disc to be played; and a turntable; A disc transporting machine that transports the disc, and a clamp mechanism that clamps the disc that has been transported to the performance position,
The clamping mechanism includes a suppressing member that cooperates with the turntable to perform a disk clamping action, and a suppressing member that is movable between a clamp position and a non-clamping position with respect to the turntable, and that rotates the suppressing member. The pressing member has a magnetic force of a magnet fixed to the suppressing member to form a redisc clamp, and the pressing member and the supporting member are made of a magnetic material, and the supporting member is made of a magnetic material. An autoloading disc player, wherein the suppressing member is attracted to the supporting member by the magnetic force of the magnet when the suppressing member is in the clamp position.